Question- opk

So I had what looked close to a positive on CD13 (which is early) and another dark line (just about the same as the control) CD15 but didn’t have any of my usual ovulation signs. The last two months i O’d cd23 so I kept testing. I had cramps on CD18 and a clearer positive on CD20 with EWCM so I figured that was my positive(same as control). I had cramping again last night with more EWCM so I took another opk this morning (CD25) and it was SO DARK the test line showed before the control which has never happened. Has this happened to anyone before? I feel like I’ve gotten multiple positives and don’t know which to go by..